using natural gas this power plant can produce enough energy for about 600,000 homes. generating electricity that's cleaner and reliable, with fewer emissions-- it matters. ♪ switzerland, australia, columbia >>> hello. i'm fredricka whitfield with a check of our top stories. snow and ice now causing problems in parts of the north and east. hundreds of flights are canceled in d.c. with airports across the country also experiencing delays. the wintry blast not expected to last long with above freezing temperatures moving in monday. >>> nuclear inspectors are in iran today for their third visit to a heavy water reactor. the site is being carefully monitored because it could in theory be a source of plutonium. that's one of two possible elements along with highly enriched uranium that could be used as fuel for a nuclear bomb. iran denies it is trying to build a bomb. >>> coming up at the top of the hour, a newlywed couple is charged in a brutal murder. police say the husband and wife plotted and killed a man just for the thrill of it. we uncover the deadly scheme. i'd fr